APEXi - Active Tail Silencer for N1 Dual & N1 NA Exhaust, 90mm (155-A026) corvettesbvc * Fully closed at low

* Fully closed at low rpm and fully open above the set rpm

- 155-A007 : 75mm

It has a highly durable and reliable structure with low pressure operation that controls ON / OFF

Do not apply filter oil to this filter as it was not designed to utilize such oils

- Progressive-density filter element improves power and efficiency

APEXi - Active Tail Silencer for N1 Dual & N1 NA Exhaust, 90mm (155-A026) corvettesbvc * Fully closed at lowThe Active Tail Silencer (ATS) is the most effective way to lower sound output caused by a straight through racing exhaust system. The use of silencer a has also been shown to actually increase mid range torque in some vehicles. The ATS is equipped with an exhaust pressure sensitive spring loaded valve that automatically opens and closes based on the point of exhaust pressure. This allows more exhaust flow under acceleration and high rpm meanwhile